Hire the Best Data Engineers in New York

I am a web developer with deep experience in backend development, data engineering, and automation. I build scalable web applications that rely on complex data workflows, well designed databases, and reliable automation systems. My core strength is designing backend systems that handle large volumes of data, including data ingestion, scraping, processing, validation, storage, and training pipelines. I have built automated workflows for collecting data from multiple sources, transforming it through ETL processes, and feeding it into web applications, analytics dashboards, and machine learning or training systems. I regularly work with automation platforms such as n8n and similar workflow tools, as well as custom backend automation built with code. This includes scheduled jobs, event driven workflows, API integrations, scraping pipelines, and data synchronization between systems. I focus on reliability, observability, and failure handling so automated systems continue running without manual intervention. I have strong experience in database design and data modeling, with a focus on performance, data integrity, and scalability. I design schemas that support analytics, reporting, and evolving product requirements. My web development background ensures that backend systems are built to support real user facing applications, not just isolated data processes. I approach projects from a systems perspective, understanding how web applications, automation, and data pipelines work together. I communicate clearly, document workflows, and build solutions that are maintainable long term.

Most data pipelines don’t fail because of code. They fail because they weren't built for scale. With 8+ years of experience engineering data systems at companies like Microsoft and Coreweave, I help businesses move away from "brittle prototypes" to production-grade, scalable infrastructure. I don’t just move data; I build the "Source of Truth" that leadership and AI systems actually trust. 💬What I Solve for You: Productionizing AI Pipelines: Hardening Python prototypes into scalable RAG and LLM infrastructures (AWS/Azure). ➔Infrastructure-as-Code: Building automated, modular ETL/ELT pipelines that don't require daily manual fixes. ➔The "One-Source" Dashboard: Integrating messy data from APIs, SaaS (Shopify, HubSpot), and DBs into clean Snowflake/BigQuery layers. ➔Performance Recovery: Optimizing slow SQL queries and high-cost cloud warehouses to save you thousands in monthly spend. 🛠 Tech Stack: Languages: Python (FastAPI, Pandas, PySpark), SQL Cloud & Warehousing: AWS (Glue, Lambda, S3), Snowflake, BigQuery, Azure Orchestration: Airflow, dbt, GitHub Actions Data Ops: API Integrations, Vector DBs, Data Validation ✅ Why Me? 8+ Years Experience: I’ve seen what breaks at the enterprise level and how to prevent it in your startup. Speed over Perfection: I focus on shipping high-impact systems that drive revenue, not just technical documentation. Transparent Communication: You get regular updates and a partner who challenges requirements to find better solutions. Ready to clean up your data debt? 📩 Message me for a FREE 15-minute technical consultation. Let’s discuss your architecture and see if I’m the right fit for your system.

Building worlds on screen and behind the source code. Independent filmmaker and full-stack software engineer blending cinematic storytelling with deep technical architecture. Equal parts writer/director, Godot 3D systems creator, and low-level software builder—turning complex mechanics, custom engine pipelines, and raw narrative tension into finished, high-impact reality. From directing short films to architecting full-stack web and game applications, the focus remains the same: precise execution, undeniable aesthetic control, and zero wasted motion. Specialties - JavaScript, Python, C#, Go, and Java - Business Analysis and Quality Assurance. - Database Design and Administration. - Front-End Web & Mobile development. - Back-End API integration. - Testing/Debugging & Source Control. - Project Management. - Canva, Da Vinci Resolve, Adobe Creative Suite - Final Draft Pro

⭐⭐⭐⭐⭐ Keith is a highly skilled Python freelancer on Upwork, and I am overly impressed and satisfied with his outstanding services. From the moment we initiated our collaboration, Keith exhibited a level of professionalism and expertise that truly set him apart. His proficiency in Python programming is commendable, and he consistently delivered high-quality consultative services. Keith's responsiveness and willingness to accommodate our evolving needs demonstrated a level of dedication rarely seen in freelance professionals. His adaptability to project changes and his ability to quickly grasp complex concepts showcased his genuine passion for his craft. ⭐⭐⭐⭐⭐ "Keith was great to work with. He dove into the project, and made it his own. He always responded quickly to any questions/communications, and tackled all the problems that came up along the way with the coding. The project involved technology that was new to both of us. We learned a lot along the way, and he handled the new material well." ⭐⭐⭐⭐⭐"Really knowledgeable and explained things in a very easy way to understand." I'm a top-rated plus freelancer 🥇, and a highly skilled python developer based in New York City. Fueled by my love for all things technology and a steady stream of coffee, I specialize in web application development, data engineering, and automation. With a diverse set of skills and a keen eye for detail, I am committed to delivering innovative and effective solutions to the problems my clients face. I've solved engineering problems for top companies around the USA: ✔️ Bank of America ✔️ Black Rock Inc ✔️ Goldman Sachs ✔️ Cube It (Startup) ✔️ Count it (Startup) ✔️ Headway (Startup) ✔️ Eigen Technologies (Startup) 🏆 What can i bring to the table? 🏆 ✔️ Help business streamline their processes with Software Engineering and AI ✔️ Custom web application development ✔️ Provide the best foundation of code with cutting edge solutions ✔️ I thrive working on fast paced environments and complex projects ✔️ Expertise in ML/AI related project development ✔️ Streamline your Data Engineering pipeline development needs ✔️ Always eager to learn and to take on new challenges If you're looking for a python developer who can help you stay ahead of the curve with AI, I would love to chat. Don't hesitate to reach out to me to learn more about my capabilities and how I can help your business succeed. Technologies: OpenCode AI, Open AI, Claude Code, Context Engineering, AI engineering, Django, Python, ScikitLearn, Dagster, AWS, EC2, Postgresql, Javascript, google app scripts, docker, docker-compose, pandas, numpy, Tensorflow, OpenAI, GPT4 and more. Looking forward to working with you! Keith L

I have several years of experience, using multiple programming languages and frameworks, in both academia and industry, in statistical modeling, probabilistic programming, classical machine learning and application of deep learning in several domains. The last several years I have been primarily ad cloud and data architect and data engineer and AI engineer. I have extensive experience in data modeling, pipeline development, data compliance, and worked with several database technologies (relational, NoSQL, graph, Hadoop and Spark), as well as CI/CD, API development, and architecting and development with multi-cloud computing platforms (Microsoft Azure, AWS, and GCP). I have deep experience in Databricks, and am a certified data engineer professional. 

I have worked in various fields such as, statistical genetics, behavior genetics, computational social science, app development, FinTech and healthcare data. The last 3 years I have run a consultancy while also building two profitable startups as data architect, data engineer while also being responsible for AI engineering and machine learning. Current Certifications: Databricks: Data Engineer Professional Azure: Developer, Data Scientist, Data Engineer, AI Engineer AWS: Data Engineer GCP: Data Engineer I have an extensive background in Python, R, JavaScript, SQL (T-SQL, PostgreSQL, SparkSQL, Databricks SQL, CQL, HiveQL, Cypher, KQL), with most data science libraries such as Pandas, NumPy, Scikit-learn, SciPy, SymPy, Rapids, PySpark, TensorFlow and TensorFlow Probability, Keras, PyTorch. I have extensive experience with standard data engineering tools: Snowflake, Databricks, Spark, PostgeSQL , dbt , Neo4j, Hadoop, Airflow, Beam, Iceberg, Hive, Kafka

, AirFlow, Flink, SuperBase, Hadoop, Dagster, Prefect, dot. As well as deep experience with several AI frameworks and automation tools: DSPy, LlamaIndex, BAML. LangChain, Hugging Face, AutoGen, LangGraph, a2a, MCP the AI frameworks of all 3 major cloud providers, n8n, Make, PipeDream, Flowise, Zapier, 5 Tran, and AirByte. 
I have extensive experience with multiple cloud providers, especially with the following skills and cloud products:
 General Cloud Development: Databricks in any cloud Azure: Storage, Networking, Functions, VMs, App Service, Synapse, Data Factory, DevOps, Kubernetes Service, API Management, Service Bus, Event Hubs, Event Grid, PubSub, Notification HubsRelay, IoT Hub, Power Apps, Power Automate, Azure Machine Learning, Synapse Analytics, Data Lake Storage, SQL Server, Cosmos DB, Data Flow, Stream Analytics, HDInsight, Redis, Cognitive Services, Text Analytics Service, LUIS, Custom Vision, Bot Service, Cognitive Search, and the general Power Platform AWS: S3, EBS, EC2, Lambda, Networking, RDS, Redshift, Arora, Athena, DynamoDB, DocumentDB, Lake Formation, Glue, Redis, SageMaker, Bedrock, Kinesis, QuickSight Elasstic Beanstalk, Elastic Kubernetes Service, Databricks, Pipeline, EMR, CloudWatch GCP: Storage, Networking, Cloud Functions, VMs, App Engine, Kubernetes Engine, API Gateway, BigQuery, BigTable, DataProc, Composer, DataFlow, Data Fusion, Data Studio, Cloud SQL, CloudSpanner, Cloud Memorystore, Pub/Sub

🏆 95% Job Success | 🚀40+ AI & SaaS Products Shipped | Upwork's Top Talent ⭐⭐⭐⭐⭐ I've fixed AI features that were already live and already losing a client money. That's usually a worse problem to inherit than building from scratch, because something's making the client uneasy, but nobody can point at exactly what. My job is finding that thing. I'm Zulqarnain, founder of Altechra. MS in Data Science, NYIT (Data Science Graduate Achievement Award, Class of 2026). 40+ AI and SaaS products shipped, live, not prototypes. Numbers that are actually mine: ▸ Fraud detection at 92% precision, ~$500K/year saved ▸ AI recommendation platform, 50K+ downloads ▸ Marketplace platform live at 10K+ users ▸ Automation pipeline, 600+ actions/day, unattended ▸ CNN classifier, ~96% accuracy ▸ Top 5%, Kaggle language modeling What I build: ▸ RAG & Knowledge Systems — LangChain, Pinecone, FAISS, MCP, citation-backed retrieval ▸ AI Agents — multi-step tool calling, structured scoring (JobCraft, built solo, end to end) ▸ AI Automation — n8n, GoHighLevel, multi-source pipelines ▸ Full-Stack — React, Next.js, Python, Node.js, Firebase, Supabase, AWS, Docker Recent work: A RAG medical chatbot, every answer traced back to its source. A Grok-based report generator for a research client, two contracts, both 5 stars, "deep technical expertise, immediately had a solid grasp on the intent." An AI virtual try-on system, "delivered above and beyond on a truly complex build." I use AI coding tools daily. I read and verify everything before it ships. When something's outside what I've built, I say so before you pay, not after. What's breaking, or what are you building? I'll tell you exactly what it'll take. { RAG Developer | LangChain Developer | AI Agent Developer | AI Automation Engineer | LLM Integration Specialist | Vector Database Engineer (Pinecone, FAISS) | Chatbot Developer | Conversational AI Developer | Machine Learning Engineer | Computer Vision Engineer | Full-Stack Developer | Python Developer | React Developer | Node.js Developer | AI SaaS Developer | MVP Developer | n8n Automation Specialist | GoHighLevel Automation | Fraud Detection Engineer | Predictive Modeling | AI Product Engineer